Add 84/27 and 42/18
1st number: 3 3/27, 2nd number: 2 6/18
84/27 + 42/18 is 49/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 18 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 27 × 2 = 54,
84/27 = 84 × 2/27 × 2 = 168/54 - Likewise, for the 2nd fraction, since 18 × 3 = 54,
42/18 = 42 × 3/18 × 3 = 126/54 - Add the two like fractions:
168/54 + 126/54 = 168 + 126/54 = 294/54 - 294/54 simplified gives 49/9
- So, 84/27 + 42/18 = 49/9
In mixed form: 54/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/27+84/18 84/54+42/18 84/27+42/36 84/81+42/18 84/27+42/54 84/27+42/90